X-Pert Engineering

1
Seat Assisster 3000
X-Pert Engineering
2
Problem

• Difficulty in entering and/or exiting of
  vehicles by elderly or disabled.
• Results in discourage of use and/or injury.

Solution

• Develop a product that is affordable and aids
  the target market in entering and exiting their
  vehicle

3
History
Original seat was a adaptation from the horse
drawn carriage (springs, no padding). As time
progressed safety and comfort became increasingly
important. The seat became contoured to the body
to keep a person safe on rough country roads. By
1929 the seat had a track and runner design which
hasnt been greatly changed today. Each new car
has slight changes however the slider design
remains quite the same.
4
Competition

• ELAP Rotating Car Seat
• Costs Approximately 2000
• Swings back, rotates and slides out.

• Rotating Car Seat by Mobility Conversions
• Requires seat to be replaced
• Similar to the ELAP model

• Braun Mobility Seat
• Two lever system
• Whole seat has to be replaced

Rotating Car Seat by Mobility Conversions
5
Market Research
Survey
Would You Purchase?
Maximum You Would Pay?
0-200 38 200-500 38 500-1000
22 1000 2
Yes 62 No38
6
Safety

• Must comply with the Motor Vehicle Safety Act
• Withstand a force 20 times its own weight in any
  direction
• Withstand a moment of 3,300 lb-in horizontally
• All movable devices must be self locking

7
Requirements of Design
Price

• Low Cost
• Ideally around 200-500

Ease of Use

• Dont have to replace original seat
• Simple operation so anyone can use it

Strength

• Strong enough to withstand a person of 500
  pounds
• Can withstand all forces outlined by the Motor
  Vehicle Safety Act

8
Initial Design Ideas
Slide, rotate, and electronically lift a person
out of the seat.
1 2 3
Slide, and lift through spring loading
Adding a handle to existing car seat.
9
Possible Design Ideas
10
Car Seat Analysis
11
Additional Research
Some very interesting information was found that
will assist us in adding to our car seat design
in the future of our company, and give us a
clearer understanding of our target market.
TOPICS

• The Swedish taxi system
• Thermal Comfort
• Expanded Polypropylene

12
Final Design Idea
13
Final AutoCAD Drawing - Driving Position
14
Final AutoCAD Drawing- Fully Extended
15
Final Inventor Drawing
16
Materials
Composite Materials

• Can be engineered for specific properties at
  varying densities
• Cost much more than standard materials

17
Ordering and Installation
Sliders

• Barnes Engineering Company
• Custom design the length, based off of their 18
  model
• Supports up to 1000 lbs per pair
• Cost approximately 100 per pair

Expanded Polypropylene Foam

• JSP
• Custom shapes and densities for shape and comfort
• Costs approximately 100 for a 2x17x18.5 sheet

18
Calculations
Maximum Force
Bending Moment as governing reaction
Vertical Force as governing reaction
Moment Force x Distance
Force Moment / Distance
F 500 lbs By summation of forces
Moment 4500 lbin
Force 562.5 lb
19
Calculations
Shear Force Diagram
Bending Moment Diagram
20
Calculations
21
Calculations
Summary
22
Calculations
23
Calculations
24
Calculations
A) BASE PLATE (refer to calculations figure
1-1) 1) Maximum vertical static load. Four bolts
in compression.
2) The devices own weight. Four bolts in shear in
any direction (forward, backward, sideways).
3) Moment about the reference point
(horizontally). Four bolts in shear (clockwise or
counter clockwise).
25
Calculations
26
Cost
27
Prototype
28
Conclusion

• Challenges can be overcome with hard work
• Harder than anticipated to analyze real life
  situations
• Very pleased with the outcome of design and
  prototype
• Special thanks to Emeka Oguejiofor, Paul Doiron,
  Werner Schnepf and Steve MacDonald

29
Schedule